This is in reply to your request of September 17, 1998,
requesting a license to prepare and distribute derivative
works from the copy of DOE-MACSYMA software obtained from the
NESC. The ESTSC assumed the DOE Centralized Software
Management Facility responsibility in January 1991. The
following statement of the Department of Energy's (DOE)
position is provided as the ESTSC response to your
request.

“It has been the DOE practice (where the case
permits) to encourage private companies or individuals to
modify, enhance, or make derivative works of unrestricted
software sponsored or supported by DOE for the purpose of
commercialization or distribution of such modifications,
enhancements, and/or derivative works. Accordingly, William
F. Schelter may consider he has a nonexclusive, world-wide,
royalty-free license to make derivative works (modifications
or enhancements) from the copy of DOE-MACSYMA obtained from
NESC, and to copy, license and/or distribute those derivative
works for use, modification and enhancement, and further
sublicensing and distribution.

Distribution of such derivative works is subject to
the U.S. Export Administration Regulations (Title 15 CFR
768-799), which implements the Export Administration Act of
1979, as amended, and/or the International Traffic in Arms
Regulation, of 12-6-84, (Title 22 CFR 121-130), which
implements the Arms Export Control Act (22 U.S.C. 2728) and
may require license for export.”

We have enclosed a current list of the countries which are
considered sensitive and require approval through DOE
Headquarters. Should you have requests from such countries,
please contact the ESTSC for approval. If you intend to make
your derivative work(s) available under the GPL (gnu public
license) via the Internet, the previous paragraph should be
included in the GPL and should accompany other modifications,
enhancements or derivative works of your program.

The derivative versions of DOE-MACSYMA which you develop
for commercialization purposes may be of interest to DOE
organizations which ESTSC supports. We would appreciate
getting copies of such derivatives and would adhere to the
dissemination limitation markings which you define.